Which of the following terms is associated with the control of motion graphics in a video?

The term that is associated with the control of motion graphics in a video is keyframe. In animation and video editing, keyframes are specific points in time where a change occurs. When creating motion graphics, keyframes are used to denote the beginning and end of a transition or animation. By setting keyframes at different points, an animator can control aspects such as position, scale, rotation, and opacity over time. The software interpolates the values in between the keyframes to create smooth transitions, which is a vital element in producing dynamic and engaging motion graphics.

In contrast, other terms listed have different applications; for instance, frame averaging relates to video frame processing but doesn’t directly control motion graphics. Dynamic scaling refers to adjusting the size of graphical elements, but this is typically done in response to other attributes rather than controlling motion graphics timeline. Motion tracking is used to follow moving objects in a video scene but does not specifically refer to the control of motion graphics themselves. Thus, keyframes are the primary method for managing and manipulating animations in video production.